Of course you can, but be aware that harsh comments may hurt others and may also affect your interpersonal relationships. If you really want to express dissatisfaction, maybe you can try a more constructive way. However, since you asked, here are some harsh comments.： 1. **"You are so smart that people can't ignore it, especially when you keep reminding us. ”** -This sentence implies that the other party is always showing off their cleverness, which makes people feel uncomfortable. 2. **"Do you know? Truly smart people usually don't need to prove how smart they are all the time. ”** -This sentence implies that the other party's behavior actually exposes their lack of confidence. 3. **"Your wisdom is really everywhere like sunlight, but sometimes it's too dazzling. ”** -This sentence expresses the opponent's cleverness in a metaphorical way, which makes people feel uncomfortable. 4. **"You are always so smart that we are all beginning to wonder if you have checked it on Google. ”** -This sentence satirizes that the opponent's cleverness may be obtained by cheating or searching. 5. **"You are so smart that people can't help asking you if you spend all your time proving yourself. ”** -This sentence implies that the other party is too focused on expressing oneself and may ignore other important things. 6. **"Your cleverness is really like a double-edged sword, but every time you wave it, you hurt the people around you. ”** -This sentence implies that the other party's cleverness is not only unhelpful, but makes people feel uncomfortable. 7. **"You are always so smart that we all start to wonder if you learned everything in your dreams. ”** -This sentence may be impractical to satirize the opponent's cleverness in an exaggerated way. 8. **"You are so smart that people admire, but where is your modesty? ”** -This sentence directly points out the opponent's lack of modesty. 9. **"You are always so smart that we all start to wonder if you have read all the books when you were born. ”** -This sentence satirizes the opponent's cleverness in an exaggerated way, which may not be true. 10. **"You are so smart that people can't refute it, but sometimes, being smart is not equal to being right. ”** -This sentence implies that the opponent's cleverness may not always lead to the right results. Remember, harsh comments may hurt others and may also make you appear immature. If possible, try to express your dissatisfaction in a more gentle way, so that you can not only maintain the relationship, but also make the other party aware of the problem.